1. Which of the following statements BEST defines semipermeablea. Allowing all materials to move in and out freelyb. Maintaining a constant concentration of materials inside the cell membranec. Allowing some materials to pass, while preventing othersd. Preventing the movement of all materials
Answers
The correct answer is c. Allowing some materials to pass, while preventing others
When we say semipermeable it refers to some, partly, or not completely.
Related Questions
PLS SOMEONE DRAW ME Punnett square FOR THIS ASAP,
In mice, brown coat is dominant to black coat. If a pure breeding brown mouse is mated to a pure breeding black coated mouse, all of the offspring are brown. Fill in the Punnett square below to show this cross.
Answers
Answer:
Punnett square drawn below:
Explanation:
Sorry if it's messy. Since brown coat is dominant to black coat, that would mean that the genotype for brown is either Aa or AA. Since it says it's a pure breeding brown mouse and that all of the offspring are brown, that means that the genotype for the pure breeding brown mouse is AA. As for the black coated mouse, black is reccessive, meaning the genotype would be aa. So... AA x aa = 100% Aa
How are mates limiting factor? Isn’t having mates in fact going to increase population
Answers
Answer: How can limiting factor affect population growth?
Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off
Explanation:
What happens during the S (synthesis) phase of interphase?
a. the cell rests before it moves to a level of high activity
b. the cell creates copies of its DNA or genetic material
c. the cell divides into two new cells
d. the nucleus divides in half
Answers
b. the cell creates copies of its DNA or genetic material
During the S (synthesis) phase of interphase, the cell undergoes DNA replication. This means that the cell creates copies of its DNA or genetic material. The DNA in the cell is duplicated to ensure that each daughter cell produced during cell division will receive a complete set of genetic information. This phase is critical for cell division and the transmission of genetic material to offspring cells.
Hydrogen bonds form between neighboring water molecules because of:
Answers
Answer:
Hydrogen bonds form between neighboring water molecules because of: polarity of water molecules. Covalent bonds form between hydrogen and oxygen atoms in a water molecule as a result of the: sharing of electrons between atoms.
Explanation:
I hope it helped
Environmentalists are monitoring an area of tropical forest that is being deforested because of human activities. The graph here shows the scientists' predictions based on the data they have collected. How is the ecosystem likely to change as a result? Select the two correct answers.
A. decrease in biodiversity
B. gain in oxygen
C. gain of species
D. loss of habitat
Answers
Answer: decrease in biodiversity - loss of habitat
Explanation:
Answer:loss of habitat and decrease in biodiversity
Explanation:
What is DNA Isolation?
Multiple Choice
copying of the DNA molecule
the extraction of DNA from viruses or cells
the rupturing of the DNA molecule
measuring the DNA molecule for transport
the moving of DNA from one cell to another
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Answer:
Explanation:
To late?
Identify one misconception about the theory of evolution.
Answers
Using natural selection, evolution is the process by which a species' characteristics change over several generations. The three constraints of Darwin's hypothesis concern the beginning of DNA, the unchangeable intricacy of the cell, and the lack of momentary species.
When a species splits into multiple new forms as a result of a shift in the environment that opens up new resources or introduces new environmental obstacles. Darwin's finches on the Galapagos Islands have created different molded snouts to exploit the various types of food accessible on various islands.
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Describe what happens to carbon dioxide in the carbon cycle. Remember to write your answers in complete sentences.
Answers
Answer:
Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth. Carbon moves from plants to animals.
Explanation:
Brainliest please?
Identify the structures of the cells and the routes by which water and minerals pass through to the vascular tissue.
Answers
Answer:
Xylem
Explanation:
Xylem is a conducting tissue found in vascular plants in which most plant use to obtain water and minerals they need through their roots. Water and mineral moves from the soil to roots to stems and to leaves. The minerals such as potassium (K+), Calcium (Ca2+) travels in dissolved for in the water with various organic molecules supplied by root cells.
Water and minerals enter the root by different paths but converge in the stele, or central vascular bundle in roots.
Water conducting cells is known as tracheary elements.
f(x) = 16x2 + 32x - 9?
Answers
Answer:
this is bioldy site
Explanation:
Alzheimer's disease is most closely linked to the deterioration of neurons that produce:__________
a) acetylcholine.
b) endorphins.
c) epinephrine.
d) dopamine.
Answers
Answer:
a
Explanation:
What are the functions of mitotic cell division?
Answers
Answer:
The main functions of mitosis are growth and repair. Some cells once fully formed do not undergo cell division, such as nerve cells and muscle cells. Since you can never re-grow or repair these types of cells once they are mature, you must take care of the ones you have.
Explanation:
Mitotic cell division is a process of mitoses where a parent cell divides to create two identical daughter cells.
There are five phases of mitoses which include:
prophaseprometaphasemetaphaseanaphasetelophaseThe functions of mitotic cell division include:
They are used for the development of cellsThey are used for cell replacementThey are used for asexual reproduction.They are used for cell repairRead more here:
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Which of the following best describes the term 'polymer'?
A. A small monomer.
B. Small molecules.
C. A large monomer.
D. A large molecule made of many monomers.
Answers
Answer: A large molecule made of many monomers.
Explanation:
Use the map to answer the following question:
Answers
Answer:
Hello, what is the questiom=n?
Explanation:
Cardiac muscle causes movement in the
Answers
Answer:
(look at explanation)
Explanation:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells. These control the contractions of your heart.
Cardiac muscle causes movement in the heart.
What is Cardiac muscle?A cardiac muscle is the type of muscle found only in the heart. It is also called the myocardium.
The cardiac muscles are only located in the heart because they are made up of features that are specialized in pumping blood powerfully and efficiently. These features include:
they are involuntary and intrinsically controlled,they are striated,they are branched and single nucleated.Therefore, cardiac muscle causes movement in the heart.
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Hypothesis: Make a prediction about what you think will happen if you test the rate of photosynthesis using
different light intensity, distance, and colored light. (2 points)
Answers
Answer: Varies
Explanation:
There would be different lighting results in relation to the plants.
HELP ME
MARKING BRANELIST
Answers
Answer:
I think the answers probably b
What would happen to the concentrations of Pyruvate, NADH and intermembrane H+ if the ETC stopped working?
Answers
Answer:
"Proton decreases" would be the right approach.
Explanation:
The Kreb cycle or system plays a key role throughout a matrix of mitochondria. 3 NADH, 2 FADH2 as well as 1 ATP are synthesized. Whenever the Kreb process has been halted, the acetyl CoA throughout the Kreb cycle has not been used. Pyruvate doesn't at all, disintegrate via acetyl CoA. Therefore in cells, pyruvate accumulates. Unless the Kreb loop is halted, therefore the concentration of NADH and FADH2 declines.Thus, they aren't used for the transportation chain of electrons. This is also why protons have not been discovered to be injected towards intermembrane space.
Differentiata between Loam soil and sandy. Team soil soil
Answers
Answer:
The key difference between sandy soil and loamy soil is that sandy soil is less fertile due to the low content of nutrients, moisture, and humus, whereas loamy soil has more nutrients, moisture, and humus and is more fertile.
Explanation:
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loam soil provides a well-balanced environment for plant growth, with good drainage, moisture retention, and nutrient availability.
Sandy soil, on the other hand, drains quickly but lacks moisture retention and nutrient-holding capacity, requiring additional irrigation and fertilization.
The choice of soil type depends on the specific needs of the plants and the environmental conditions in which they are grown.
Loam soil and sandy soil are two distinct types of soil with different characteristics and properties.
Loam soil is considered to be ideal for plant growth due to its balanced composition.
It is a combination of sand, silt, and clay particles. Loam soil has a granular texture and is often described as crumbly.
It has good drainage capabilities, allowing excess water to flow through while retaining enough moisture for plant roots.
The presence of silt and clay particles helps in retaining nutrients, making them available to plants.
Loam soil is fertile and provides a suitable environment for root development.
It offers a good balance of air spaces and moisture-holding capacity, promoting healthy plant growth.
Sandy soil, on the other hand, primarily consists of larger sand particles.
It has a gritty texture and is characterized by its high drainage capacity.
Sandy soil drains water quickly, which can be beneficial in preventing waterlogged conditions.
However, due to its coarse texture, it does not retain moisture well, making it prone to drought.
Sandy soil also has low nutrient retention capability, as nutrients tend to leach away with excessive watering or rainfall.
As a result, sandy soil often requires more frequent irrigation and the application of fertilizers to compensate for the lack of nutrients.
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Which statement describes how energy is conserved in an ecosystem? A. About 90% of the energy is used or released by the organism, and the remainder is transferred to the next trophic level. • B. About 40% of the energy is transferred to the next trophic level, and the remainder is released into the ecosystem. c. About 90% of the energy is transferred to the next trophic level, and the remainder is released into the ecosystem. • D. About 10% of the energy is used or released by the organism, and the remainder is transferred to the next trophic level.
Answers
Answer:
about 90 of the energy is transferred TO the next trophic level...which is the answer is A
Identify several sources and types of waste associated with your activities on a typical day.
Answers
Everyone generates waste. Municipal solid waste, industrial non-hazardous waste, agricultural and animal waste, extraction and mining waste, oil and gas production waste, fossil fuel combustion waste, and sewage sludge are created.
What are different types of wastes?Healthy and comfortable life need clean surroundings. Waste is unavoidable since people, factories, processes, and animals produce it daily. Different types of wastes found are:
Discarded grease, oil, sludges, wash water, waste detergents, and unclean water are liquid waste. They are toxic and present in homes and industries. Wastewater is liquid waste.Industrial and commercial solid waste includes trash and sludge
Organic waste includes decaying meat, garden, and food. Homes have this trash. Microorganisms degrade them into manure. But don't just throw them away.
Recyclable materials including metals, furniture, and organic garbage. Avoid putting non-recyclable goods in the recycle container. Check the package to see if an item is recyclable.
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Answer:
(Answers may vary.)Following are some sources and types of waste associated with my activities on a typical day.At home, I generate sewage from various uses of water such as bathing, flushing toilets, and washing dishes.I have a nursery at the backyard of my home. The nursery generates vegetative waste.My family and I generate municipal waste by throwing away garbage.The toilets my friends and I use at school generate sewage.The garbage from food waste from my school cafeteria generates municipal waste.
Explanation:
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compare systems for digestion in an amoeba to those in a mouse.
Answers
The digestive system in an amoeba is a single-celled process, while in a mouse, it involves a complex system of organs and specialized tissues for mechanical and chemical breakdown of food.
An amoeba ingests food via phagocytosis, in which the cell membrane engulfs the food particle and forms a food vacuole. Enzymes are then secreted into the vacuole to break down the food. In contrast, a mouse ingests food through the mouth, where it is mechanically broken down by teeth and saliva, and then chemically broken down in the stomach and small intestine through the secretion of digestive enzymes.
The main difference between the digestion systems of an amoeba and a mouse is that an amoeba has a single cell that performs all the functions of digestion, whereas a mouse has specialized organs that perform different roles in the process of digestion. The digestive system of a mouse is adapted to break down complex food molecules into smaller units that can be absorbed and utilized by the body, while the digestive system of an amoeba is adapted to break down small food particles that can be absorbed directly into the cell.
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Winds transfer energy in the atmosphere by the process of _________.
conduction
convection
radiation
precipitation
Answers
Precipitation is the movement of the wind.
I hope this helps.
4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
Answers
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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Explain how a swinging bat has kinetic energy?
Kinetic energy can be found in all bats.
The bat is gaining kinetic energy from the air around it.
Any matter that is moving has kinetic energy.
The bat has stored energy that is now being release.
Answers
Answer:
Explanation:
D
How does science influence the decisions made about social, economic, and political issues?
Answers
Answer:
Science influences society through its knowledge and world view. ... Societal challenges often inspire questions for scientific research, and social priorities often influence research priorities through the availability of funding for research. Technology influences society through its products and processes.
Explanation:
Answer:
Science influences social issues by using the knowledge they know to show their view of the world, For economic and political issues science, is used to justify different political aims of governments
Explanation it is the same thing as the bottom one but shorter. so give brainliest to other person.
Photosynthesis is the process by which autotrophs produce their own food. It is an anabolic reaction in which energy is stored (endergonic). Consequently, Cellular Respiration is the opposite of Photosynthesis. In Cellular Respiration, heterotrophs consume food to produce energy. It is a catabolic reaction in which energy is released (exergonic). Both metabolic processes are essential to sustain life. Describe the similarities and differences between the biochemical pathways of Aerobic Respiration and Photosynthesis in eukaryotic cells. Include in your discussion the major reactions, the end products, and energy transfers.
Answers
The similarities between aerobic respiration and photosynthesis are that they are both metabolic reactions and ATP is used at some point in each of the reactions.
The difference between aerobic respiration and photosynthesis is that:
aerobic respiration produces carbon dioxide and water as an end-product whereas photosynthesis produces oxygen and glucose as an end-product. aerobic respiration uses oxygen and glucose as starting materials whereas photosynthesis uses carbon dioxide and water as starting materials ATP is used by photosynthesis, whereas ATP is produced in cellular respirationThe equations of photosynthesis and celli=ular respiration are given below:
photosynthesis: 6 CO₂ + 6 H₂O + ATP ---> C₆H₁₂O₆ + 6 O₂cellular respiration C₆H₁₂O₆ + 6 O₂ -----> 6 CO₂ + 6 H₂O + ATPWhat is photosynthesis?Photosynthesis is the process by which autotrophs produce their own food.
It is an anabolic process. The equation of photosynthesis is shown below:
6 CO₂ + 6 H₂O + ATP ---> C₆H₁₂O₆ + 6 O₂
Aerobic cellular respiration is a process by which oxygen is used by heterotrophs to break down food molecules to produce energy.
The equation of aerobic cellular respiration is given below:
C₆H₁₂O₆ + 6 O₂ -----> 6 CO₂ + 6 H₂O + ATP
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Please hurry. Which of the following examples includes only chemical changes that occur in the digestive process?
A: Absorption of nutrients by villi in the small intestines
B: Chewing and swallowing food
C:Recycling of water from dissolved food back into the body
D: Reaction of saliva, stomach acid, bile, and pancreatic juices with food
Answers
The example that includes only chemical changes that occur in the digestive process is the reaction of saliva, stomach acid, bile, and pancreatic juices with food. Option D.
What are chemical changes?Chemical changes refer to changes to the chemical properties of substances. In biological reactions, these substances are referred to as reactants.
Chemical changes are different from physical changes. In physical changes, only the physical properties of substances are altered while their chemical properties remain intact.
When a substance changes chemically, its physical properties most often change along. However, this is not in all cases.
Thus, looking at the examples given, their classification into either physical or chemical changes is as follows:
Absorption of nutrients by villi in the small intestines: physical changeChewing and swallowing food: physical changeRecycling of water from dissolved food back into the body: physical changeThe reaction of saliva, stomach acid, bile, and pancreatic juices with food.When saliva, stomach acid, bile, and pancreatic juices react with food, the chemical properties of food change because the enzymes convert different components of food from one form to another as part of the process of digestion.
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what is the analogy between the vacuole and a school?
Answers
Answer:
The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.
(ix) Rh blood group system is encoded by three genes C, D and E which occupy----
tightly linked loci
(A) four
(B) three
(C) five
(D) two
Answers
Rh blood group system is encoded by three genes C, D and E which occupy 3 tightly linked loci. Option B
What should you know about Rh blood group system?The Rh blood group system is typically considered to be encoded by three loci namely; one for RHD, and two for the RhCE (C and E) antigen variations.
The RHD locus is known to encode the D antigen, which is the most important Rh antigen.
The RhCE locus encodes the C and E antigens, which are less common than the D antigen.
The Rh blood group system is important for blood transfusions, as it determines whether or not a person's blood is compatible with another person's blood.
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